Kochanek, Richard F., author
Harcourt Brace Jovanovich, 1990
Buku Teks
McGraw-Hill, 2000
Buku Teks
Hilman, A. Douglas, author
Dryden Press , 1986
Buku Teks
Pyle, William W., author
Richard D. Irwin, 1980
Buku Teks
Robert F. Meigs ... [et al.]
Prentice Hall International, 2001
Buku Teks